Before order,you need notice: If you are in Turkey, please left a message to modify the imei number in the order, or contact us after take the order, we can help you to modify the imei number.If you are in Chile or Colombia,after you receive the product, you should register imei in your country as soon as possible, otherwise the device is not allowed to be used in your country.How to inquire imei number:you can send SMS command : imei123456. Applications It designed specially for big animals, such as sheep, cow and horse etc Worldwide Compatibility It can work perfectly in 99%countries around the worldwide. Realtime Tracking You will can view the animals on google maps via your cellphone or computer in real time. GPS+LBS Dual Positioning Ways Normally the tracker can locate via GPS satellites outside under sky. but if the GPS signal is not so good in some areas such as inside the house, forest or tall building surrouding,the tracker will also can locate via LBS. Waterproof IP65 With water-resistant to ensure stable operation in tough environment . you needn't worry about being splashed by water but you can't put it under water. 3000mAh Big Backup Battery